The CSi comps are great speakers for your front stage and would work fine ... if you like them, then go with them.

I personally don't like the Perfect's ... I think they need a little bit of work. The Quart's tweeter bugs me and I've yet to find something wrong with any Focal's. Take my opinion's like a grain of salt ... it's you who is listening to the music, opinions vary, and the only way to tell if you like a speaker is to listen to it. So if there is any way possible, listen to as many component set's out there possible before making your purchase. I also want to show you the CDT's, which are on sale for a good price ... $150 ... feaured near the bottom of the page here: http://thezeb.com/caraudio/CDT_Audio_Components.html . They seem hard to beat for the price. Check out the Adire Audio Koda component set - www.adireaudio.com .

As for rear midbass, Peerless CSX 6.5" are great ... only like $35/speaker @ www.partsexpress.com . Also look at the Adire Audio Koda midbass driver - link above.